Question

By selling of chair for Rs 1440,a trader gain 20%.find the cost price of the chair.

Answer 1

Let the cost price of the chair be 'x',

As,the trader gains 20% by selling the chair for 1440 ,

it,is obvious that the C.P is less than S.P.

So,now we get the equation as follows,

20*x/100 + x =1440

= 6*x/5=1440

= x=1200.

Answer 2

$\LARGE{\bf{\underline{\underline{GIVEN\::-}}}}$

• SP = ₹ 1440
• Gain = 20%

$\LARGE{\bf{\underline{\underline{TO\:FIND\::-}}}}$

• The cost Price of a Chair

$\LARGE{\bf{\underline{\underline{SOLUTION\::-}}}}$

By using CP Formula ,

$\sf{C.P}$ = $\sf\dfrac{100}{100\:+\:Gain }$ × $\sf{S.P}$

⠀

= $\sf\dfrac{100}{100\:+\:20}$ $\sf{×\:1440}$

⠀⠀

= $\sf\dfrac{100}{120}$ $\sf{×\:1440}$

$\leadsto \sf{\red{₹\:1400}}$